Box-loop forming and embossing machine.



PATENTED SEPT. 4, 1906.

APPLICATION FILED SEPT. 1, 1906.

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PATENTED SEPT. 4, 1906.

H. S. KEMP. BOX LOOP FORMING AND EMBCISSING MACHINE.

APPLICATION FILED SEPT. 1, 1905.

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No. 830,077. PATENTED SEPT. 4, 1906.

H. S. KEMP.

BOX LOOP FORMING AND BMBOSSING MACHINE. AHLIOATION FILED SEPT. 1. 1906.

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ITED STATES PATENT QFFIGE.

HORATIO S. KEMP, OF MILIVAUKEE, WISCONSIN.

BOX-LOOP FORMING AND EMBOSSING MACHINE.

Specification of Letters Patent.

Patented Sept.- 4, 1906.

Application filed September 1, 1905. Serial No. 276.688.

' Loop Forming and Embossing Machines, of

which the following is a description, reference being had to theaccompanying drawings, which are a part of this specification.

My invention is of improvements in bOX loop forming and embossingmachines where 'by automatic movement is secured, a more rapid operationis accomplished, and a better and more satisfactory result is obtainedthan has heretofore been had in the manufacture of box-loops, especiallyloops of the general form and character of those desirable andheretofore made crudely on the straps and members of harness and otherarticles made of leather.

The invention consists of the mechanism, its parts and combinations ofparts, as herein described and claimed, or the equivalents thereof.

In the drawings, Figure 1 is a side elevation of my improved forming andembossing machine. Fig. 2 is a vertical section on line 2 2 of Fig. 1.Fig. 3 is a section on line 3 3 of Fig. 1 looking downwardly. Fig. lrepresents the incised and thereby ornamented surface of the plate,adapted for embossing and thereby finishing the outer surface of thebox-loop. Fig. 5 is a perspective of a boxloop on a harness-strap formedin my machine. Fig. -6 is an end elevation of a modified form of theinvention, and Fig. 7 is a section on line 7 7 of Fig. 6, lookingupwardly, oFf the modified form of machine shown in My improved machineis preferably formed throughout of metal and advisably chiefly of steel,though some of the partssuch, for instance, as the embossing platemay bemade of brass.

In the drawings, A represents the base, advisably in the general form ofa block adapted to rest on a support, the base being cut away across itmedially in the top, forming a floor 2, with side walls 3 3, advisablyflaring a little outwardly upwardly from the floor to the top of thebase. Vithin the socket or recess in the base thus formed there areangled levers or jaws 4 1, the upright arms of which levers are pivotedmedially to the end upwardly-projecting portions or standards 5 5 of thebase conveniently by means of short straps 6 6, secured to therespective sides of the standards in pairs advisably by means of pins 7,fixed in the straps and. entering sockets therefor in the standards, andby screws 8, passing through the straps and turning into the standards,which straps are provided with inwardly-projecting stud pivot-pins 9that enter the jaws 1 4, permitting the jaws to tilt thereon. The jawsare so formed that the lower laterally-projecting arms thereof may abutagainst each other when the upwardly-projecting arms are open, in theman A vertically-disposed supportingpin 10, mounted in a socket thereforin the base A directly underneath the ends of the laterally-projectinglower arms of the jaws, is held upwardly yieldingly by a spring 11, thisspring-actuated pin being disposed and adapted to throw the upper armsof the jaws apart or open, as shown in Fig. 1. Thejaws l are so formedthat when they close toward each other and against the box-loop theirbottom surfaces will come to rest on the floor 2 and their lateral edgesbelow their pivots may also come to rest against the walls 3, or, inother words, the jaws 4 when in operation seat themselves on the floor 2and may bear against the walls 3 on surfaces thereof below the pivots 9.

The jaws 4 are provided with face-pieces 12 12, opposite andcomplementary to each other on the inner surfaces of the jaws, adaptedfor forming and finishing the sides of a box-loop, which face-pieces aresecured in position by any suitable means, which may be pins or rivets13, extending from the facepieces into or through the jaws in suchmanner that the face-pieces may be removed readily for replacement byother face-pieces when the old ones have become worn or it is otherwisedesirable to change them. In setting the face-pieces 12 in the jawssheet-metal backings 14 may be interposed, if found desirable. Theseface-pieces may have such finishing on their exposed and oppositesurfaces as desired, the face-pieces in the drawings being groovedvertically for giving a ribbed effect to the sides of the box-loop whenformed in this machine. At the lower ends of these face-pieces andbetween them within the jaws and for forming the bottom of the box-loopthere is a loop-plate 15, loosely resting on the upper surfaces of thelaterally-projecting arms of the jaws, which loop-plate is advisablyprovided with downwardly-extending retaining-pins 16, which ner shown inFig. 1.

IIO

' otherwise the outer surface an embossing or finishing plate 17 isrequired,

enter sockets therefor in the ends of thelaterally-extending arms of thejaws, by which means the loop-plate is held against accidentaldisplacement. The upper and forming surface of this plate 'may be of anyformdesired, but is preferably concave in transverse section, as shownin the drawings.

For forming and finishing by embossing or of the box-loop which platemust be located in the machine substantially opposite the lowerloop-plate 15,and this plate is fixed to and thereby sup; ported inposition on and 'movably with an. overhanging plate-arm 18, providedwithl rigidly-depending legs 19,which slide or tele-f scope in socketstherefor in the base A'and' therein in the standards 5. The plate-armis. supported at a distance above the loop-plate 15 yieldingly byaspring 20, coiled aboutasprmg-retalning pin 21, fixed in the plate 18,

therefrom and entering loosely a socket thereforin thebase A. The pin 21at its'lower end is provided with a head 22, located in a lower andenlarged portion of the pin-receiving socket, the head 22 being adaptanddepending ed to contact against a shoulder at the upper end of theenlarged socket, thereby preventing the uplifting of the plate 18 by thespring 20 beyond the desired limit of its travel. The plate 17 issecured to the arm 18 detachably conveniently by means of screws 23. Theexposed under surface of this plate 17 may be engraved or finished as adie in ornamental form, as illustrated in Fig. 4, thereby adapting it toemboss or finish the outer surface of the box-loop by compression withsuch ornamentation as desired.

For receiving and holding the completed box-loop as made by the workmanwho puts the parts together, but without having received its form orornamentation in such manner as to form' and finish the loop in thismachine, an elongated finger, which I call a loop-stick 24, is provided,which loop-stick is of such size in cross-section as adapts it to enterand properly form the made but un formed and to that extent uncompletedboxloop, which loop-stick is beveled and somewhat narrowed to a thin andnarrowed edge at its front end and is provided with a shoulder 25 on onesurface thereof, which serves as a stop against which the end of theloop will contact when placed on the stick. The loopstick 24 may besupported in position with reference to the. jaws and with reference tothe plates 15 and 17, but movable vertically in the manner illustratedin Figs. 1, 2, and 3 by providing an'auxiliary base-piece 26, secured tothe base A conveniently by screws 27 27, in which base-piece two posts28 are fixed, on and about which posts the stick 24 is movablevertically, being guided thereby. A sleeve 29 is advisably employed,which is fixed in the loop-stick 24 and which fits rests at its lowerend on loosely around one of'the guide-posts 28 and telescopes thereon.A spring 30, coiled about the sleeve 29 and about the post 28,

the auxiliary basepiece 26 and bears yieldingly upwardly against theloop-stick 24, being adapted to support the loop-stick yieldingly, asshown in Figs. 1 and 2. An enlarged head 31, secured to the top end ofthe guide-post 28 by a screw 32, serves as a stop against which theloop-stick contacts and is prevented from escaping upwardly from theguide-post.

In use a box-loop B as made by a workman, but unfinished as to form andornamentation, is pushed onto the loop-stick 24, as illustrated in Fig.2, and thereupon by any suitable means, which may be a screw or press orcam, the plate-arm 18 is forced down, carrying the embossing-plate 17against the top of the box-loop, which going farther down with theplate-arm is brought between the face-pieces 12 of the jaws 4 and downonto the loop-plate 15, and being forced farther down the jaws arecaused to close toward each other, bringing the face-plates 12 againstthe sides of the loop and pressing the embossing-plate 17 against thetop surface of the loop against the resistance of the under plate 15 tosuch extent as to impress or emboss the top or outer surface of thebox-loop with the design of the plate or die 17, the result being theforming by compression of the box-loop in the approximately square andfinished form desired, which completion in this respect being undergreat pressure so forms and sets the leather of the box-loop that itretains its form and ornamental finish thereafter.

In the modified form of construction shown in Figs. 6 and 7 theloop-stick 24 instead of being mounted on upright posts, like thoseshown in Figs. 1, 2, and 3, which are fixed on an auxiliary base 26, issupported dependingly from the plate-arm 1'8. This may be accomplishedby providing the loop-stick 24 with upright legs 33, which enter andtravel vertically in sleeves 34, fixed in an extension 35 of the arm 18,which extension may be made as an addition and secured thereto by meansof screws 36. An enlarged head 37 on the top of one of the legs 33 fitsin an enlarged portion of the socket therefor in the extension 35 andresting on a shoulder therein prevents the descent of the loop-stick 24beyond the required distance from the plate 17. In this form of machinethe loop-stick 24, subject to its movement vertically on the arm 18,moves therewith vertically into and out of position between theforming-jaws.

What I claim as my invention is- 1. A box-loop machine, comprising abase, a pair of angled jaws pivoted on the base and provided withloop-fo ming faces, means for holding the jaws open yieldingly, abottomloop-forming plate between the jaws resting on arms of the jaws,an opposite outersurface loop-forming plate movable toward and from thebottom plate, and an interposed loop-stick movable toward and from thebottom-loop-forming plate.

2. In a box-loop machine, a base having a j awreceiving recess in itssurface, angled side-loop-forming jaws in said recess ivoted oppositeeach other to standards of t e base at the ends of the recess, abottom-loop-forming plate between the jaws and resting and supportedconstantly on inturned arms thereof,an opposite toploopformingplatemovable toward and from the bottom plate, and me ans for holding a loopin the space between and adjustable to the loop-forming devices.

3. In a box-loop machine, a base having a recess in its surface therecess being provided with a jaw-supporting floor, angled opposite jawspivoted at their sides in the recess, means in said floor bearingagainst and adapted to lift the laterally-disposed arms of the jawsyieldingly, a bottom-loop-forming plate supported on thelaterally-adjacent projecting arms of the jaws, and an oppositetoploop-forming plate adapted to be moved toward and from thebottom-loop-forming plate.

4. In a box-loop machine, a movable loopstick, tilting jaws havingside-loop-forming face-plates opposite each other, mounted directly onand movable laterally in both directions by and with the jaws, abottom-loopforming plate between and supported constantly on the jaws,and an opposite toploop-forining plate adapted to move toward nd fromthe bottom plate and by its movement against a loop on the stickinterposed between the top and bottom plates, to compel such movement ofthe jaws toward each other as thereby to press the four sides of aninterposed loop.

5. In a box-loop machine, a base having a jaw-supporting floor, jawspivoted on the base adapted to rest on the floor when closed against aninterposed loop, means in the base adapted yieldingly to lift theinturned adjacent arms of the jaws away from the floor, movable meansadapted to press against the outer surface of a loop interposed betweenthe jaws and thereby to communicate pressure against and movement to thearms of the jaws bringing the jaws to their seats on the floor andagainst the sides of the interposed loop.

6. In a box-loop machine, a base, angled jaws pivoted on the base to beseated on the base when put in operation, opposing faceplates on andmovable laterally by and with the jaws, and means in the base pushingyieldingly against adjacent inturned arms of the jaws for holding thejaws yieldingly open and away from their seats on the base.

7. In a box-loop machine, a base, angled jaws pivoted on the base andhaving laterally inwardly projecting and abutting arms, a bottom platebetween the jaws resting on the laterally-projecting arms, and pins onthe plate entering recesses therefor in the ends of thelaterally-projecting and complementary arms and holding the platereleasably in position on the arms of the jaws.

8. In a box-loop machine, a base, angled tilting jaws pivoted on thebase, laterallyprojecting arms on the jaws, an overhangingloop-plate-carrying arm movable toward and from the laterally-projecting arms of the jaws, legs on the overhanging arm slidablein ways therefor in the base, and a spring adapted to hold theoverhanging arm yieldingly at a distance from the base and the jaws.

9. In a box-loop machine, a base, jaws pivoted thereon and adapted topress against and form the sides of a box-loop, a plate-arm carrying aloop-forming plate, legs projecting from the arm and movable in the basepermitting the movement of said loop-forming plate into and said jaws, aspring ingly away from the base and the jaws, and means on the jaws toreceive the pressure and to cause the jaws to be moved toward each otherby the movement of said loopforming plate on said plate-arm toward saidjaws and through an interposed box-loop.

10. In a box-loop machine, a base, jaws pivoted thereon and adapted topress against and form the sides of a box-loop, a plate-arm carrying aloop-forming plate, legs projecting from the plate and movable in thebase permitting the movement of said loop-forming plate into and fromthe space between said jaws, a spring holding the plate yieldingly awayfrom the base and the jaws, and a loopstick interposed and supportedmovably 1n the space between the loop-forming plate and said jaws.

11. In a box-loop machine having movably-appro aching box-loopside-forming jaws and approaching top and bottom box-loopformingmembers, a loop-stick supported movably in the space between theseboxloop-forming devices.

12. In a box-loop machine, the combina tion with box-loop side-formingjaws, a boxloop-forming bottom plate, and a movable plate-arm carrying acomplementary boxloop top-forming plate, of a loop-stick suspended onand movable toward and from said plate-arm in and across the spacebetween said box-loop-formin'g members.

In testimony whereof I affix my signature in presence of two witnesses.HORATIO S. KEMP.

Witnesses ANNA F. SOIIMIDTBAUER, G. T. BENEDICT from the space betweenholding the plate yield--

